F&W Media-Fons & Porter Books: Create The Perfect Fit. Joi Mahon debunks traditional fitting rules and shares her measure yourself, measure your pattern style of fitting to help you achieve the best fit possible. With detailed instructions and illustrations, she will walk you through the process of measuring your body, applying your measurements to a commercial pattern and creating an exact muslin that will become the base for any future pattern you sew. Learn how one pattern of any size can be adjusted to fit any body type. Author: Bonnie Barker. Spiral Bound; 144 pages. Published Year: 2014. ISBN 978-1-4402-3961-8. Imported.